well i can tell you right now if you go look at
www.hertzaudiovideo.com website and check out there mill sub it will kill two of those subs with just one. and the other subs do a great job i have on es 300 and i put out 127db with only 155 watts rms at 4ohms and its also in like a .9 cubic inch box. small enclosure and they are good or add more air and room and get more performance. ia m looking at doing the mill 12". you can see my set up at my myspace page look me up at
demondriver2001@yahoo.com or send me your email and i will show you the set up.